replaced nuovo-rilascio.html with latest-version.html
added new static page (Edubuntu, Ubuntu Cinnamon and Ubuntu Unity) with relative imgs
now build_scss takes all .scss files contained inside assets and build and minify them with min.css extension
now info.json has 'long_description' and 'portrait' key with img or video path Fixes: issue #28
by using the 'releases' key in constants.json Fixes: issue #27